util a/17/14 shows that the cfu50 z305_id Oracle index is now present and valid.

$LOGDIR/pc_server_6570.log and pc_server_6573.log show that no ORA-01502 errors have occurred in the past hour. So it seems that it's fixed.

I see (in the 6573 log) that this problem was present at 6:44 this morning. Was there a batch update of patron records last night which might have caused this? I think of the p_file_20 PLIF load, but I don't see that....